Advice / help injecting Testosterone Cypionate!

I recently switched back to gels from injections for TRT. As a result, I'm left with four 10ml bottles of Testosterone cypionate from my old script.

I want to do a muscle building cycle with them, but no nothing about the dosage needed, length of cycle, or use of an AI with test, etc. I dont need a PCT since I have been shut down for years due to the TRT.